Tunneling proxy server

A tunneling proxy server is a method of overcoming blocking policies carried out using proxy servers. Most tunneling proxy servers are also proxy servers, of varying degrees of sophistication, which efficaciously go through “bypass policies”.

A tunneling proxy server is a web-based page that takes a site that is blocked and “tunnels” it, allowing the user to view blocked pages. A famous example is elgooG, which allowed users in China to use Google after it had been blocked there. elgooG differs from most tunneling proxy servers in that it outsmarts only one block.

A September 2007 report from Citizen Lab recommended Web based proxies Proxify, StupidCensorship, and CGIProxy. Alternatively, users could partner with individuals outside the censored network running Psiphon or Peacefire/tunneling proxy server. A more elaborate approach suggested was to run free tunneling software such as FreeGate, or pay services Anonymizer and Ghost Surf. Also listed were free application tunneling software Gpass and HTTP Tunnel, and pay application software Relakks and Guardster. Lastly, anonymous communication networks JAP ANON, Tor, and I2P offer a range of possibilities for secure publication and browsing.

Other alternatives include Garden and GTunnel by Garden Networks

Students are able to access blocked sites (games, chatrooms, messenger, offensive material, internet pornography, social networking, etc.) through a tunneling proxy server,although now most of the reputed proxy sites are banning offensive material to be browse through their servers. As fast as the filtering software blocks tunneling proxy servers, others spring up. However, in some cases the filter may still intercept traffic to the tunneling proxy server, thus the person who handles the filter can still see the sites that are being visited.

Tunneling proxy servers are also used by people who have been blocked from a web site.

Another use of a tunneling proxy server is to allow access to country-specific services, so that Internet users from other countries may also make use of them. An example is country-restricted reproduction of media and webcasting.

The use of tunneling proxy servers is usually safe with the exception that tunneling proxy server sites run by an untrusted third party can be run with hidden intentions, such as collecting personal information, and as a result users are typically advised against running personal data such as credit card numbers or passwords through a tunneling proxy server.

In some network configurations, clients attempting to access the proxy server are given different levels of access privilege on the grounds of their computer location or even the MAC address of the network card. However, if one has access to a system with higher access rights, one could use that system as a proxy server for which the other clients use to access the original proxy server, consequently altering their access privileges.

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